Pith Number

pith:N6STS3YD

pith:2009:N6STS3YDHPKU4UKMNAEMQB7YRJ

not attested not anchored not stored refs pending

Forecasted 21 cm constraints on compensated isocurvature perturbations

Christopher Gordon (Oxford), Jonathan R. Pritchard (CfA)

arxiv:0907.5400 v2 · 2009-07-30 · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N6STS3YDHPKU4UKMNAEMQB7YRJ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Cited by

1 paper in Pith

Receipt and verification

First computed	2026-07-04T16:21:51.489955Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6fa5396f033bd54e514c6808c807f88a67ffc5e1009c9efa9fb1ed68eff3ca6f

Aliases

arxiv: 0907.5400 · arxiv_version: 0907.5400v2 · doi: 10.48550/arxiv.0907.5400 · pith_short_12: N6STS3YDHPKU · pith_short_16: N6STS3YDHPKU4UKM · pith_short_8: N6STS3YD

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/N6STS3YDHPKU4UKMNAEMQB7YRJ \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 6fa5396f033bd54e514c6808c807f88a67ffc5e1009c9efa9fb1ed68eff3ca6f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d931475e3e6969e32be547d18aaf9e141d09be123aa90ed4c1224dca0a661a4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-07-30T19:39:45Z",
    "title_canon_sha256": "43fd746f70a8dda607b90ac8d0f19ca23720ccafc27d33e37386bcac8e1c7e95"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.5400",
    "kind": "arxiv",
    "version": 2
  }
}